I am looking for Service/API for transform (resize and crop) and optimize (reduce size) of images.
| Name | Price | CDN Network |
|---|---|---|
| imgix | $3 per 1000 transformation | $0.08/GB |
| Cloudinary | Free account provide 25x1000 transformation | Or 25x1GB |
| Fastly Images | Free? | $0.12 - $0.28 per GB |
| rethumb | Free for file < 512KB | - |
| Filestack | Free acccount provide 1000 transformation | 1GB |
| LibPixel | $15 for 10000 transformation | 10GB |
| Transloadit | Free 2GB (Image input size + output size) | - |
| Kraken | $5 for 500MB Image | - |
| Image Resizer | $5 for Unlimited Transformation (with some limitations) | 2GB |
| Uploadcare | Free 100 uploads + unlimited transformation | 1GB |
| ImageOptim | $12 for 2000 transformation | - |
Opinion
I believe the top 3 solutions are:
imgix: premium solution used by unsplash and some costing analysis.Cloudinary: a pretty generous free tier with offer 25 monthly credits: 1 Credit equals 1000 transformations or 1GB of managed storage or 1GB of monthly viewing bandwidth.Fastly Images: I believe there is no charge for transformation, only CDN charges. $50 free credit upon signup.
NOTE: I have yet to explore API friendliness, compression quality and CDN speed.
Other options
- Open Source Image Optimization Server: Thumbor or ImageFlow
- Google App Engine Images API - Support for Python 2.7/Java 8/Go 1.9 (I suspect it might be deprecated soon), get_serving_url() allows you to dynamically resize and crop images, so you don't need to store different image sizes on the server. This method returns a URL that serves the image, and transformations to the image are encoded in this URL. This function assumes that the image doesn't change; if it gets modified after you get the URL, you may get unexpected results from using the URL.
- Cloudflare Images - require Business ($200/Month) and Enterprise Customers